Hello friends ,
i want to get results using cascalog queries .I need to get data between 2
timestamps datefrom and dateto as shown below in code . I have a problem
in loop , where i cannot update the timestamp value .
I am using clojure cli-time .
(ns Recallnack.core
(:use [cascalog.api]
[cascalog.more-taps :only (hfs-delimited)])
(:require [clj-time.core :as t])
(:require [clj-time.format :as f])
(:require [cascalog.ops :as c])
(:gen-class))
(def info
(hfs-delimited
"/Volumes/SindhuHosamane/Master_thesis_docs/burner_changed.txt"
:delimiter ";"
:outfields ["?timestamp" "?assembly" "?sensor"
"?value"]
:classes[String String String Float]
:skip-header? false))
(def info-tap
(<- [?timestamp ?value]
((select-fields info ["?timestamp" "?value"]) ?timestamp ?value)))
(def datefrom "12:05:2010 00:00:00")
(def dateto "12:05:2010 01:01:00")
(def custom-formatter (f/formatter "dd:MM:yyyy HH:mm:ss"))
(def hour-part (t/hour (f/parse custom-formatter datefrom)))
(def minute-part(t/minute (f/parse custom-formatter datefrom)))
(loop [hour-part 01]
(when (>= minute-part 00)
(?<- (stdout) [?timestamp-out ?value-out]
(info-tap ?timestamp ?value) (c/limit [1] ?timestamp ?value :>?timestamp-out
?value-out
)
)
(recur (+ minute-part 01))))
where am i wrong in the loop ? Any advice!!
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